Power Cord & Platic Cable Covers

There's answers, and then there's Al. No substitute.

I have my subwoofer cable under a vinal cover in front of a doorway,have tried it with and without.No difference.As Al said,running two in the same cover could be detrimental.

Well it depends if the cable is shielded or not, and how effective the shield is, and whether you (or anyone) can actually hear any difference.

The best dielectic is a vacuum. then air, then partial contact etc..
So the more a wire is in contact with some other stuff the more it 'might' be a problem.
Thus the deal about keeping cables off the floor.
However some stuff is a problem and other stuff the combo is not.
So you can do all sorts of things in anticipation, or try it and see.

My power cables are well shielded and I am not worried about them touching anything..

Zd, thank you most kindly.

Best regards,
-- Al

all my cables are made just from copper,cotton,paper and air(spacers)....sounds the best for me....